A security consultant hunts for a ruthless assassin. Equally obsessed with each other, they go head to head in an epic game of cat-and-mouse.

Elektra the warrior survives a near-death experience, becomes an assassin-for-hire, and tries to protect her two latest targets, a single father and his young daughter, from a group of supernatural assassins.

Natasha Romanoff, also known as Black Widow, confronts the darker parts of her ledger when a dangerous conspiracy with ties to her past arises. Pursued by a force that will stop at nothing to bring her down, Natasha must deal with her history as a spy and the broken relationships left in her wake long before she became an Avenger.